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Finding the Fourth Proportional to 3,665.04, 5,491.08 and 3,587.28

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Solution

The fourth proportional to 3,665.04, 5,491.08 and 3,587.28 is: 5,374.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,665.04 : 5,491.08 = 3,587.28 : x
  2. Step 2: Convert to fraction form
    3,665.04/5,491.08 = 3,587.28/x
  3. Step 3: Cross multiply
    3,665.04x = 5,491.08 × 3,587.28
  4. Step 4: Simplify right side
    3,665.04x = 19,698,041.46
  5. Step 5: Solve for x
    x = 19,698,041.46/3,665.04
  6. Step 6: Final answer
    x = 5,374.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.